#include "mystdio.h"
#include <string.h>
#include <stdio.h>
#include <unistd.h>

#define FILE_NAME "log.txt"
int main()
{
    myFILE* fp = my_fopen(FILE_NAME, "w");
    if(fp == NULL) return 1;

    const char* str = "hello bit";
    int cnt = 10;
    char buffer[128];
    while(cnt)
    {
        sprintf(buffer, "%s - %d", str, cnt);
        my_fwrite(fp, buffer, strlen(buffer));//strlen(buffer) + 1 不需要
        cnt--;
        sleep(1);
        my_fflush(fp);
    }
    my_fclose(fp);
    return 0;
}
